Atrial septal defect (ASD) - Symptoms and causes - Mayo Clinic
Jan 23, 2024 · A large atrial septal defect can send extra blood to the lungs and cause the right side of the heart to work too hard. Without treatment, the right side of the heart grows larger …
Atrial Septal Defect (ASD) - American Heart Association
ASD is a defect in the septum between the heart's two upper chambers. The septum is a wall that separates the heart's left and right sides. What causes it? Every child is born with an opening …
Atrial Septal Defect (ASD) | Congenital Heart Defects (CHDs ...
Dec 14, 2025 · As a baby's heart develops during pregnancy, several openings in the wall divide the upper chambers of the heart (atria). These openings normally close during pregnancy or …
Atrial Septal Defect: Symptoms, Types & Treatment
What Is an Atrial Septal Defect? An atrial septal defect, or hole between your two atria, allows abnormal blood flow between them. An atrial septal defect (ASD) is a hole in the atrial septum, …
Atrial Septal Defect (ASD) | Fact Sheets | Yale Medicine
An atrial septal defect (ASD) is a congenital heart defect, a problem with the heart’s structure that is present at birth. Put most simply, an ASD is an abnormal hole in the wall that divides the …
Atrial Septal Defect (ASD) – Symptoms and Causes | Penn …
An atrial septal defect (ASD) is a condition where there is a hole in the wall between the heart’s two upper chambers. This causes blood to flow between the chambers, making the heart and …
Atrial Septic Defects (ASD) | Symptoms, Diagnosis & Treatment
Atrial septal defects are one of the most common heart defects. If left untreated, atrial septal defects may cause problems in adulthood.
Atrial Septal Defect (ASD): Symptoms & Causes | NewYork ...
There are four primary types of atrial septal defect, each characterized by their location in the septum. Secundum atrial septal defects - the most common diagnosed type of ASD. These …
Atrial Septal Defect (ASD) in Children - Stanford Medicine ...
What is an atrial septal defect in children? The atrial septum is the wall between the two upper chambers of the heart (right and left atria). An atrial septal defect (ASD) is an abnormal hole in …
Atrial septal defect - Wikipedia
Illustration of an atrial septal defect. Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.